....it was said, There is little to no improvement to be made in DSLR technology as it is limited by optics. Not limited by optics, but limited by manufactures.

Camera makers could produce the "perfect dslr', but won't. One perfect cam, with great low-light, low noise under $1300.00. Make it and the consumer will but it. Upgrade about every five years. No...the Big 3 (Nikon, Canon, Oly) nickle-dimes the consumer with little upgrades. They want us to buy DLSR's bodies every 2 years.